Security Advisory

CVE-2026-12856

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-29 12:33:52

Last updated 2026-07-15 01:22:08

Assigner redhat

CVSS score not scored

State PUBLISHED

Description

A flaw was found in the vscode-java extension, which provides Java language support for Visual Studio Code. The extension incorrectly trusts all Markdown content in JavaDoc hovers, allowing a malicious Java file to include hidden commands. If a user clicks a specially crafted link within a JavaDoc hover popup, an attacker can execute arbitrary VS Code commands, which can lead to full system compromise in trusted workspaces.

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